Apply Clippy suggestions

Author: dhardy

rand_core/src/block.rs

@@ -381,13 +381,13 @@ impl<R: BlockRngCore<Item = u64>> RngCore for BlockRng64<R> {
         let mut read_len = 0;
         self.half_used = false;
         while read_len < dest.len() {
-            if self.index as usize >= self.results.as_ref().len() {
+            if self.index >= self.results.as_ref().len() {
                 self.core.generate(&mut self.results);
                 self.index = 0;
             }
 
             let (consumed_u64, filled_u8) = fill_via_u64_chunks(
-                &self.results.as_ref()[self.index as usize..],
+                &self.results.as_ref()[self.index..],
                 &mut dest[read_len..],
             );
 

src/distributions/uniform.rs

@@ -340,7 +340,7 @@ where Borrowed: SampleUniform
 {
     #[inline(always)]
     fn borrow(&self) -> &Borrowed {
-        *self
+        self
     }
 }
 

src/rngs/adapter/reseeding.rs

@@ -208,8 +208,8 @@ where
         ReseedingCore {
             inner: rng,
             reseeder,
-            threshold: threshold as i64,
-            bytes_until_reseed: threshold as i64,
+            threshold,
+            bytes_until_reseed: threshold,
             fork_counter: 0,
         }
     }

src/seq/index.rs

@@ -238,7 +238,7 @@ where R: Rng + ?Sized {
 
     if amount < 163 {
         const C: [[f32; 2]; 2] = [[1.6, 8.0 / 45.0], [10.0, 70.0 / 9.0]];
-        let j = if length < 500_000 { 0 } else { 1 };
+        let j = usize::from(length >= 500_000);
         let amount_fp = amount as f32;
         let m4 = C[0][j] * amount_fp;
         // Short-cut: when amount < 12, floyd's is always faster
@@ -249,7 +249,7 @@ where R: Rng + ?Sized {
         }
     } else {
         const C: [f32; 2] = [270.0, 330.0 / 9.0];
-        let j = if length < 500_000 { 0 } else { 1 };
+        let j = usize::from(length >= 500_000);
         if (length as f32) < C[j] * (amount as f32) {
             sample_inplace(rng, length, amount)
         } else {

src/seq/mod.rs

@@ -641,7 +641,7 @@ impl<'a, S: Index<usize, Output = T> + ?Sized + 'a, T: 'a> Iterator for SliceCho
 
     fn next(&mut self) -> Option<Self::Item> {
         // TODO: investigate using SliceIndex::get_unchecked when stable
-        self.indices.next().map(|i| &self.slice[i as usize])
+        self.indices.next().map(|i| &self.slice[i])
     }
 
     fn size_hint(&self) -> (usize, Option<usize>) {